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 TYPE B1 & B2 Railway Signalling Cable

Application

TYPE B1 & B2 Railway Signalling Cables are designed for railway signalling systems. The cables are suitable

for use in d.c. circuits where the nominal voltage to earth does not exceed 1100 volts and installation in ducts.

Reference Standards

NR/PS/SIG/00005(formerly RT/E/PS/00005)

Construction

TYPE B1 & B2 Railway Signalling Cable

Conductors: Tinned stranded copper, class 2 according to IEC 60228 & BS 6360.

Insulation: EPR Type GP4 to BS 7655.

Core Wrapping: Plastic tape(s) with overlapping.

Sheath: HDPCP Type RS2 to BS 7655.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section mm² 0.75 1.5 2.5 10.0 16.0 35.0 70.0 95
Maximum Conductor DC Resistance Ω/km 24.8 12.2 7.56 1.84 1.16 0.529 0.27 0.195
Voltage Rating KV 0.65/1.1
Nominal Insulation Thickness mm 0.85 0.8 0.8 1.0 1.0 1.2 1.4 1.6

Mechanical and Thermal Properties

Minimum Bending Radius: 6×OD (static); 15×OD (dynamic)

Temperature Range:-25℃ to +85℃ (during operation);

                                -10℃ to +85℃ (during installation)

Dimensions And Weight

Cable Code No. of cores& Nominal
Conductor Cross
Sectional Area
No. ×mm²		 No. & Nominal
Diameter of
Strands
No/mm		 Nominal
Sheath
Thickness
mm		 Overall
Diameter
Min/Max
mm		 Nominal
Weight
kg/km
Type B1
RS/B1-3G5G-1G0.75 1×0.75 7/0.37 2.0 6.5/8.1 28
RS/B1-3G5G-1G1.5 1×1.5 7/0.53 2.0 6.8/8.5 31
RS/B1-3G5G-1G2.5 1×2.5 7/0.67 2.0 7.2/8.9 34
RS/B1-3G5G-1G10 1×10.0 7/1.35 2.0 9.4/11.8 205
RS/B1-3G5G-1G35 1×35.0 19/1.53 2.0 12.9/16.1 495
Type B2
RS/B2-3G5G-2G1.5 2×1.5 7/0.53 2.0 9.4/12.1 135
RS/B2-3G5G-2G2.5 2×2.5 7/0.67 2.0 10.5/13.1 170
RS/B2-3G5G-2G10 2×10.0 7/1.35 2.0 15.0/18.7 443
RS/B2-3G5G-2G16 2×16.0 7/1.70 2.0 16.7/20.9 625
RS/B2-3G5G-2G35 2×35.0 19/1.53 2.2 22.3/27.8 1232
RS/B2-3G5G-2G70 2×70.0 19/2.14 2.4 28.8/36.0 2053
RS/B2-3G5G-2G95 2×95.0 19/2.52 2.6 33.2/41.5 2968
RS/B2-3G5G-4G0.75 4×0.75 7/0.37 2.0 10.2/12.8 140
RS/B2-3G5G-7G0.75 7×0.75 7/0.37 2.0 11.8/14.7 214
RS/B2-3G5G-10G0.75 10×0.75 7/0.37 2.0 14.4/18.0 280
RS/B2-3G5G-12G0.75 12×0.75 7/0.37 2.0 14.8/18.5 321
RS/B2-3G5G-19G0.75 19×0.75 7/0.37 2.0 17.0/21.3 451
RS/B2-3G5G-27G0.75 27×0.75 7/0.37 2.0 20.1/25.1 602
RS/B2-3G5G-37G0.75 37×0.75 7/0.37 2.2 22.7/28.4 799
RS/B2-3G5G-48G0.75 48×0.75 7/0.37 2.2 25.7/32.2 973
RS/B2-3G5G-4G1.5 4×1.5 7/0.53 2.0 10.9/13.7 217
RS/B2-3G5G-7G1.5 7×1.5 7/0.53 2.0 12.6/15.8 296
RS/B2-3G5G-10G1.5 10×1.5 7/0.53 2.0 15.6/19.4 401
RS/B2-3G5G-12G1.5 12×1.5 7/0.53 2.0 16.0/20.0 437
RS/B2-3G5G-19G1.5 19×1.5 7/0.53 2.0 18.5/23.1 615
RS/B2-3G5G-27G1.5 27×1.5 7/0.53 2.2 22.2/27.8 856
RS/B2-3G5G-37G1.5 37×1.5 7/0.53 2.2 25.1/31.4 1126
RS/B2-3G5G-48G1.5 48×1.5 7/0.53 2.4 28.1/35.1 1494
RS/B2-3G5G-4G2.5 4×2.5 7/0.67 2.0 11.9/14.8 260
RS/B2-3G5G-7G2.5 7×2.5 7/0.67 2.0 13.8/17.2 370
RS/B2-3G5G-10G2.5 10×2.5 7/0.67 2.0 17.1/21.3 520
RS/B2-3G5G-12G2.5 12×2.5 7/0.67 2.0 17.6/22.0 599
RS/B2-3G5G-19G2.5 19×2.5 7/0.67 2.0 20.4/25.5 835
RS/B2-3G5G-27G2.5 27×2.5 7/0.67 2.2 24.6/30.7 1232
RS/B2-3G5G-37G2.5 37×2.5 7/0.67 2.4 27.8/34.7 1623
RS/B2-3G5G-48G2.5 48×2.5 7/0.67 2.6 31.2/39.0 2032
RS/B2-3G5G-6P0.75S 6×2×0.75 7/0.37 2.0 19.7/24.6 372

Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information